A kind of high-strength and high-toughness geopolymer material and preparation method thereof
A geopolymer, high-strength and high-toughness technology, used in cement production and other directions, can solve the problems of limited application and development, easy cracking, large shrinkage, etc., and achieve excellent mechanical strength, small early shrinkage, and improved toughness and strength.
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Embodiment 1
[0021]1) Mix and grind 200g metakaolin, 150g fly ash, 50g red mud, 40g slag, 40g silica fume and 20g Portland cement in proportion to obtain silicoaluminous mineral raw materials;
[0022]2) Mix 20g of condensed phosphate, 20g of nano silica, 20g of nano alumina, and 10g of zeolite in proportion to mix, stir and grind to obtain a nano-level high-efficiency modifier;
[0023]3) Put 2g of super absorbent resin into 100g of deionized water and let stand for 10 minutes to obtain a pre-absorbent super absorbent resin:
[0024]4) Pour 50g of sodium hydroxide into 600g of liquid sodium silicate in proportion, stir evenly, cool and stand at room temperature for 24 hours to obtain an alkali stimulant;
[0025]5) Mix 1g 5mm long and short cut carbon fibers, 1g 5mm long polypropylene fibers, 1g 5mm long and short cut basalt fibers, 3g calcium lignosulfonate, 1g sodium lauryl sulfate and the alkali stimulant obtained in step 4) , 50Hz ultrasonic dispersion for 60 minutes to form a uniform mixed fiber dispe...
Embodiment 2
[0028]1) Mix and grind 300g metakaolin, 200g fly ash, 50g red mud, 50g slag, 60g silica fume and 40g Portland cement in proportion to obtain silicoaluminous mineral raw materials;
[0029]2) Mix 50g condensed phosphate, 40g nano-silica, 40g nano-alumina, and 20g zeolite in proportion to mix, stir and grind to obtain a nano-level high-efficiency modifier;
[0030]3) Put 3g of super absorbent resin into 150g of deionized water and let stand for 15 minutes to obtain a pre-absorbent super absorbent resin:
[0031]4) Pour 130g of sodium hydroxide into 650g of liquid sodium silicate in proportion, stir evenly, cool and stand at room temperature for 24 hours to obtain an alkali stimulant;
[0032]5) Mix 3g 5mm long and short cut carbon fiber, 2g 5mm long polypropylene fiber, 1g 5mm long and short cut basalt fiber, 5g calcium lignosulfonate, 5g sodium lauryl sulfate and the alkali stimulant obtained in step 4) , 50Hz ultrasonic dispersion for 60 minutes to form a uniform mixed fiber dispersion alkali e...
Embodiment 3
[0035]1) Mix, stir and grind 250g metakaolin, 180g fly ash, 70g red mud, 50g slag, 50g silica fume and 30g Portland cement in proportion to obtain silicoaluminous mineral raw materials;
[0036]2) Mix 35g condensed phosphate, 30g nano-silica, 30g nano-alumina, and 15g zeolite in proportions to obtain nano-level high-efficiency modifier;
[0037]3) Put 4g of super absorbent resin into 150g of deionized water and let stand for 20 minutes to obtain a pre-absorbent super absorbent resin:
[0038]4) Pour 100g of sodium hydroxide into 650g of liquid sodium silicate in proportion, stir evenly, cool and stand for 24 hours at room temperature to obtain an alkali stimulant;
[0039]5) Combine 2g 5mm long and short cut carbon fiber, 1.5g 5mm long polypropylene fiber, 1g 5mm long and short cut basalt fiber, 3g calcium lignosulfonate, 3g sodium lauryl sulfate and the alkali stimulant obtained in step 4) Mix, 50Hz ultrasonic dispersion for 60 minutes to form a homogeneous mixed fiber dispersion alkali excita...
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